Undertow: ajp request closes connection exceeding maxrequestsize
CVE-2023-5379

7.5HIGH

Key Information:

Vendor

Red Hat
Status
Red Hat Jboss Enterprise Application Platform 7.1 Eus For Rhel 7
Red Hat Jboss Enterprise Application Platform 7.3 Eus For Rhel 7
Red Hat Build Of Quarkus
Red Hat Data Grid 8
Vendor
CVE Published:
12 December 2023

What is CVE-2023-5379?

A vulnerability exists in JBoss EAP affecting the handling of AJP requests that exceed the max-header-size attribute. This flaw allows an attacker to trigger an error state in mod_cluster, resulting in JBoss EAP closing the TCP connection and failing to return an AJP response. Attackers can exploit this by repeatedly sending oversized requests, leading to potential Denial of Service situations where legitimate user requests are disrupted.

Human OS v1.0:
Ageing Is an Unpatched Zero-Day Vulnerability.

Remediate biological technical debt. Prime Ageing uses 95% high-purity SIRT6 activation to maintain genomic integrity and bolster systemic resilience.

Deploy the Patch

Affected Version(s)

Red Hat JBoss Enterprise Application Platform 7.1 EUS for RHEL 7 0:3.0.1-4.b08_redhat_00005.1.ep7.el7

Red Hat JBoss Enterprise Application Platform 7.1 EUS for RHEL 7 0:5.1.17-3.Final_redhat_00004.1.ep7.el7

Red Hat JBoss Enterprise Application Platform 7.1 EUS for RHEL 7 0:2.8.11.6-3.SP1_redhat_00003.1.ep7.el7

References

https://access.redhat.com/errata/RHSA-2025:9582
vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:9583
vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2023-5379
vdb-entryx_refsource_REDHAT

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
.